#20538B
Closest named color: Dusk Blue (#26538D). oklch(43.8% 0.107 253.3), rgb(32, 83, 139).
Aa
White text reads best on this color (7.86:1).
About this color
#20538B is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.107 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.006 away. White text reads best on it, at 7.86:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.67:1 |
| White text | 7.86:1 |
Values
| HEX | #20538B |
| RGB | rgb(32, 83, 139) |
| HSL | hsl(211, 63%, 34%) |
| OKLCH | oklch(43.8% 0.107 253.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #20538B | 7.86:1 | AAA | Lc -91.7 | Preferred for body text |
| Black text on #20538B | 2.67:1 | Fails | Lc 17.1 | Dividers and decoration only |
| #20538B text on white | 7.86:1 | AAA | Lc 87.0 | Fine for body text |
| #20538B text on black | 2.67:1 | Fails | Lc -15.1 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 800.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CADBF0
oklch(88.5% 0.034 253.7)
-
Step 300
300
#A5C4E9
oklch(81% 0.062 253.1)
-
Step 400
400
#73A4DE
oklch(70.7% 0.1 253.3)
-
Step 500
500
#4D8CD5
oklch(63.1% 0.128 253.5)
-
Step 600
600
#2E75C2
oklch(55.7% 0.139 253.2)
-
Step 700
700
#2062A7
oklch(49.2% 0.128 252.9)
-
Step 800
800 (this color)
#20538B
oklch(43.8% 0.107 253.3)
-
Step 900
900
#1E436D
oklch(37.8% 0.084 253.4)
-
Step 950
950
#122740
oklch(26.9% 0.054 254)
#20538B with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #39578D | 0.029 |
| Deuteranopia (no green cones) | #284D8A | 0.017 |
| Tritanopia (no blue cones) | #006068 | 0.081 |
| Achromatopsia (no color) | #525252 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #20538B
#20538B
oklch(43.8% 0.107 253.3)
- #704800
#704800
oklch(43.7% 0.093 73.1)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #20538B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.006
- Light Navy #155084 ΔE 0.017
- Deep Sea Blue #015482 ΔE 0.022
- Light Navy Blue #2E5A88 ΔE 0.027
- Cobalt #1E488F ΔE 0.034
- Denim Blue #3B5B92 ΔE 0.039
- Twilight #4E518B ΔE 0.053
- Dusk #4E5481 ΔE 0.055
Use #20538B in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.